US4461236A - Device for intermittent application of glue - Google Patents

Device for intermittent application of glue Download PDF

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Publication number
US4461236A
US4461236A US06/446,392 US44639282A US4461236A US 4461236 A US4461236 A US 4461236A US 44639282 A US44639282 A US 44639282A US 4461236 A US4461236 A US 4461236A
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US
United States
Prior art keywords
body portion
glue
recess
suction port
ejector
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US06/446,392
Inventor
Manfred Langenbach
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Maschinenfabrik Alfred Schmermund GmbH and Co
Original Assignee
Maschinenfabrik Alfred Schmermund GmbH and Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Maschinenfabrik Alfred Schmermund GmbH and Co filed Critical Maschinenfabrik Alfred Schmermund GmbH and Co
Assigned to MASCHINENFABRIK ALFRED SCHMERMUND GMBH & CO.; BRUGGERFELDER STR. 16-18, 5820 GEVELSBERG reassignment MASCHINENFABRIK ALFRED SCHMERMUND GMBH & CO.; BRUGGERFELDER STR. 16-18, 5820 GEVELSBERG ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: LANGENBACH, MANFRED
Application granted granted Critical
Publication of US4461236A publication Critical patent/US4461236A/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/0225—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work characterised by flow controlling means, e.g. valves, located proximate the outlet
    • B05C5/0229—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work characterised by flow controlling means, e.g. valves, located proximate the outlet the valve being a gate valve or a sliding valve
    • B05C5/0233—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work characterised by flow controlling means, e.g. valves, located proximate the outlet the valve being a gate valve or a sliding valve rotating valve, e.g. rotating perforated cylinder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
    • B05C11/1039—Recovery of excess liquid or other fluent material; Controlling means therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/60—Uniting opposed surfaces or edges; Taping
    • B31B50/62—Uniting opposed surfaces or edges; Taping by adhesives
    • B31B50/622—Applying glue on already formed boxes

Definitions

  • the invention concerns a device for the intermittent application of glue to a moving material, particularly packaging sheet of material.
  • the aim of the present invention is to provide a device for the application of glue which reliably prevents unwanted glueing of packaging pieces.
  • the above-stated objective is achieved by providing a glue ejector device with a stepped recess behind the ejector nozzle and wherein a borehole is provided in the recessed area for connection to a partial vacuum source.
  • the present invention also comprises a gluing technique wherein thread formation is not absolutely inhibited but steps are taken to make certain that any glue threads which may form do not stay on the packaging pieces or machines parts with which they come in contact.
  • the device includes an ejector body 1 in which a glue nozzle or ejector 2 is fitted.
  • Ejector 2 is connected to a glue supply 4 by a valve 3.
  • the glue ejector 2 is shown in the off condition with valve 3 closed.
  • a glue bead 7 is formed on packaging pieces 6 moving in the direction of the arrow 5.
  • a glue thread 8 is formed between the glue bead 7 and the glue ejector 2.
  • the ejector body 1 is so designed so that it has, directly behind the glue ejector 2 in the direction of transport of the packaging pieces 6, a stepped recess 9.
  • Bore hole 10 is connected to a partial vacuum source (not shown) so that the glue thread 8 is sucked up.
  • the borehole 10 can either be connected to the low pressure source when the valve 3 is closed or continuously connected thereto, the latter possibility being the least complicated solution and has proved to be fully operable.

Landscapes

  • Coating Apparatus (AREA)
  • Package Closures (AREA)
  • Making Paper Articles (AREA)

Abstract

A gluing head comprises a valve which intermittently allows the delivery of glue to an ejection port for application to sheet material which moves relative to the head. The head is provided, downstream of the ejection port in the direction of relative motion, with a stepped recess and a low pressure source is coupled to the recess whereby glue threads formed upon the discontinuance of the delivery of glue to the ejection port will be drawn upwardly away from the sheet material.

Description

The invention concerns a device for the intermittent application of glue to a moving material, particularly packaging sheet of material.
In packaging machines which form packages from individually cut pieces of sheet material precisely delimited strips of glue must be applied to these pieces. The application of glue in automatic packaging systems has previously been accomplished with either glue rollers or, in the case of the application of heat fused adhesives, with glue ejectors. Prior glue ejectors have had the disadvantage that after the glue flow is shut off by closing the jet between the ejecter nozzle and the glue bead on the packaging piece, glue threads are often formed and these threads are deposited on the packaging piece and are responsible for unwanted glueing.
In order to prevent the formation of the above-mentioned glue threads it has been proposed, see for example published Federal Republic of Germany Patent application Ser. No. 1 274 864, that the glue ejector be shut off in a period less than 1/100 second which should certainly eliminate thread formation. This procedure, however, is difficult to implement in packaging machines which operate at different speeds because the rapid shut off is only mechanically feasible synchronously with the machine.
Furthermore, it has been proposed, see for example published Federal Republic of Germany Patent application Ser. No. 2 709 935, that the glue be sucked back after the glue ejector was shut off. However, thread formation is not reliably prevented in this way.
The aim of the present invention is to provide a device for the application of glue which reliably prevents unwanted glueing of packaging pieces.
The above-stated objective is achieved by providing a glue ejector device with a stepped recess behind the ejector nozzle and wherein a borehole is provided in the recessed area for connection to a partial vacuum source.
The present invention also comprises a gluing technique wherein thread formation is not absolutely inhibited but steps are taken to make certain that any glue threads which may form do not stay on the packaging pieces or machines parts with which they come in contact.
The invention is illustrated in detail in the accompanying drawing which is a schematic cross-sectional view of a glueing device in accordance with the invention.
Referring now to the drawing, the device includes an ejector body 1 in which a glue nozzle or ejector 2 is fitted. Ejector 2 is connected to a glue supply 4 by a valve 3. The glue ejector 2 is shown in the off condition with valve 3 closed.
With valve 3 in the open condition, a glue bead 7 is formed on packaging pieces 6 moving in the direction of the arrow 5. In addition, a glue thread 8 is formed between the glue bead 7 and the glue ejector 2. The ejector body 1 is so designed so that it has, directly behind the glue ejector 2 in the direction of transport of the packaging pieces 6, a stepped recess 9. There is a borehole 10 in the base portion, i.e., the portion which is parallel to the direction of motion of the packaging pieces 6, of recess 9. Bore hole 10 is connected to a partial vacuum source (not shown) so that the glue thread 8 is sucked up. The borehole 10 can either be connected to the low pressure source when the valve 3 is closed or continuously connected thereto, the latter possibility being the least complicated solution and has proved to be fully operable.

Claims (10)

I claim:
1. An applicator for adhesives comprising:
a body portion, said body portion defining a first surface adapted to be juxtapositioned to but spaced from a surface to which an adhesive is to be applied;
an ejector, said ejector being formed in said body portion and terminating at said first surface;
means for intermittently and controllably supplying adhesive in liquid form to said ejector whereby the adhesive will be discharged from the applicator and will form a bead on a surface which moves relative to said first surface;
a recess in said body portion, said recess being positioned downstream in the direction of said relative motion from the termination of said ejector, said recess being in part defined by a second surface of said body portion which is spaced from the surface to which the adhesive is applied by a greater distance than said first body portion surface; and
means for establishing a low pressure in the region of said recess.
2. The apparatus of claim 1 wherein said recess is a stepped recess and is further defined by a third surface of said body portion which is generally transverse to and extends from said first surface to said second surface.
3. The apparatus of claim 2 wherein said low pressure establishing means comprises:
a suction port in said body portion second surface; and
means for establishing communication between said suction port and a low pressure source.
4. The apparatus of claim 3 wherein said body portion second surface is generally parallel to said body portion first surface in the vicinity of said suction port.
5. The apparatus of claim 1 wherein said low pressure establishing means comprises:
a suction port in said body portion second surface; and
means for establishing communication between said suction port and a low pressure source.
6. The apparatus of claim 5 wherein said means for intermittently supplying adhesive includes:
a flow control valve mounted in said body portion; and
a flow passage providing communication between said valve and said ejector.
7. The apparatus of claim 6 further comprising:
reservoir means on said body portion, said reservoir means receiving the adhesive to be applied; and
flow passage means establishing communication between said reservoir means and said valve means.
8. The apparatus of claim 6 wherein said body portion second surface is generally parallel to said body portion first surface in the vicinity of said suction port.
9. The apparatus of claim 7 wherein said body portion second surface is generally parallel to said body portion first surface in the vicinity of said suction port.
10. The apparatus of claim 8 further comprising:
reservoir means on said body portion, said reservoir means receiving the adhesive to be applied; and
flow passage means establishing communication between said reservoir means and said valve means.
US06/446,392 1981-12-04 1982-12-02 Device for intermittent application of glue Expired - Fee Related US4461236A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3148037 1981-12-04
DE3148037A DE3148037C2 (en) 1981-12-04 1981-12-04 Device for intermittent application of adhesive

Publications (1)

Publication Number Publication Date
US4461236A true US4461236A (en) 1984-07-24

Family

ID=6147897

Family Applications (1)

Application Number Title Priority Date Filing Date
US06/446,392 Expired - Fee Related US4461236A (en) 1981-12-04 1982-12-02 Device for intermittent application of glue

Country Status (7)

Country Link
US (1) US4461236A (en)
EP (1) EP0081100B1 (en)
JP (1) JPS58104665A (en)
CS (1) CS245779B2 (en)
DD (1) DD206945A5 (en)
DE (2) DE3148037C2 (en)
SU (1) SU1118277A3 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2323802A (en) * 1997-04-04 1998-10-07 Von Bargen Rudolf Application head for adhesives
US6066080A (en) * 1997-06-26 2000-05-23 Societe Cermex Method and machine for automatically gluing a heat shrinkable plastic film onto the bottom of an open box
US6174372B1 (en) * 1997-02-04 2001-01-16 Hirano Tecseed Co., Ltd. Duplex type coating apparatus
US20060160685A1 (en) * 2003-07-07 2006-07-20 Andreas Lamkemeyer Paper sack bottoming device
US9713814B2 (en) 2012-09-27 2017-07-25 VW-VM Forschungsgesellschaft mbH & Co. KG Switchable slot valve for a coating system, coating system, and coating method

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3735260A1 (en) * 1987-10-17 1989-04-27 Bosch Gmbh Robert SEALING DEVICE FOR TWO-PIECE CAPSULES
US5360516A (en) * 1992-11-12 1994-11-01 Philip Morris Incorporated Application of fluidized material to a substrate using intermittent charges of compressed air
ITBO940257A1 (en) * 1994-06-02 1995-12-02 Gd Spa FLUID SUBSTANCES DISPENSING DEVICE.
DE10309893B4 (en) * 2002-09-13 2019-05-23 Windmöller & Hölscher Kg Floor sorter for paper sacks and method for operating a floor sorter
EP2244949B1 (en) * 2008-02-26 2012-06-20 Sidel Holdings & Technology S.A. Vacuum drum for labelling machines
DE102011082631B4 (en) * 2011-09-13 2017-04-27 VW-VM Forschungsgesellschaft mbH & Co. KG Intermittent coating of moving surfaces

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3943527A (en) * 1975-06-04 1976-03-09 Rca Corporation Noncontacting marker

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1274864B (en) * 1966-02-24 1968-08-08 Henkel & Cie Gmbh Process for the intermittent application of thread-spinning thermoplastic adhesive
IL31504A0 (en) * 1968-08-07 1969-03-27 Weyerhaeuser Co Adhesive applicator apparatus for box-forming machines
JPS50122539A (en) * 1974-03-13 1975-09-26
GB1578018A (en) * 1976-03-11 1980-10-29 Schmermund A Glue applications
FR2372904A1 (en) * 1976-11-19 1978-06-30 Ibm STRIPPING COMPOSITION OF POLYCRYSTALLINE SILICON CONTAINING TETRAMETHYLAMMONIUM HYDROXIDE AND APPLICATION METHOD
DD137788A3 (en) * 1978-05-17 1979-09-26 Eckerhard Pruefer METHOD AND DEVICE FOR RETHATING EDGES
JPS552474U (en) * 1979-03-22 1980-01-09

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3943527A (en) * 1975-06-04 1976-03-09 Rca Corporation Noncontacting marker

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6174372B1 (en) * 1997-02-04 2001-01-16 Hirano Tecseed Co., Ltd. Duplex type coating apparatus
GB2323802A (en) * 1997-04-04 1998-10-07 Von Bargen Rudolf Application head for adhesives
GB2323802B (en) * 1997-04-04 1999-05-26 Von Bargen Rudolf Application head
US6024299A (en) * 1997-04-04 2000-02-15 Rudolf von Bargen Application head for applying an interrupted bead of material
US6066080A (en) * 1997-06-26 2000-05-23 Societe Cermex Method and machine for automatically gluing a heat shrinkable plastic film onto the bottom of an open box
US20060160685A1 (en) * 2003-07-07 2006-07-20 Andreas Lamkemeyer Paper sack bottoming device
US8216119B2 (en) 2003-07-07 2012-07-10 Windmoeller & Hoelscher Kg Paper sack bottoming device
US9713814B2 (en) 2012-09-27 2017-07-25 VW-VM Forschungsgesellschaft mbH & Co. KG Switchable slot valve for a coating system, coating system, and coating method

Also Published As

Publication number Publication date
EP0081100A2 (en) 1983-06-15
JPH0220310B2 (en) 1990-05-08
DD206945A5 (en) 1984-02-15
SU1118277A3 (en) 1984-10-07
DE3148037C2 (en) 1983-10-27
DE3148037A1 (en) 1983-06-09
EP0081100A3 (en) 1985-01-16
EP0081100B1 (en) 1987-03-25
CS245779B2 (en) 1986-10-16
JPS58104665A (en) 1983-06-22
DE3275821D1 (en) 1987-04-30

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AS Assignment

Owner name: MASCHINENFABRIK ALFRED SCHMERMUND GMBH & CO.; BRUG

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:LANGENBACH, MANFRED;REEL/FRAME:004103/0001

Effective date: 19830228

FPAY Fee payment

Year of fee payment: 4

FEPP Fee payment procedure

Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY

REMI Maintenance fee reminder mailed
LAPS Lapse for failure to pay maintenance fees
FP Lapsed due to failure to pay maintenance fee

Effective date: 19920726

STCH Information on status: patent discontinuation

Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362